Stockton police have a description of the man suspected in the attack.

"Someone saw something. It is important for people to speak up so we can catch this guy," Silva said.

Officers are looking for a man in his 20s who stands at 5 feet 10 inches tall, and weighs about 150 pounds.

"I can't believe this happened to my mother -- that someone could do something like this," said the victim's son, Lando Ybiernas. "She still has a bump on her head and a black eye. She said she will not go out for walks anymore."